package EMCpower.LINUX-5.7.3.00.00-029.el6.x86_64 is intended for a x86_64 architecture

I tried to install PP 5.7 sp3 on my Redhat linux but receive following error. Which latest PP version shall I choose?

package EMCpower.LINUX-5.7.3.00.00-029.el6.x86_64 is intended for a x86_64 architecture

# lscpu

Architecture:          i686

CPU op-mode(s):        32-bit, 64-bit

Byte Order:            Little Endian

CPU(s):                4

On-line CPU(s) list:   0-3

Thread(s) per core:    2

Core(s) per socket:    1

CPU socket(s):         2

Vendor ID:             GenuineIntel

CPU family:            15

Model:                 4

Stepping:              3

CPU MHz:               3200.000

BogoMIPS:              6400.16

L1d cache:             16K

L2 cache:              2048K

# lsb_release -a

LSB Version:    :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch

Distributor ID: RedHatEnterpriseServer

Description:    Red Hat Enterprise Linux Server release 6.3 (Santiago)

Release:        6.3

Codename:       Santiago